const homeStrand = require("./home.js");
const ingredientsStrand = require("./ingredients.js");
const ordersStrand = require("./orders.js");
const recipeBookStrand = require("./recipeBook.js");
const transactionsStrand = require("./transactions.js");

const addIngredientsComp = require("./addIngredients.js");
const ingredientDetailsComp = require("./ingredientDetails.js");
const newIngredientComp = require("./newIngredient.js");
const newOrderComp = require("./newOrder.js");
const newRecipeComp = require("./newRecipe.js");
const newTransactionComp = require("./newTransaction.js");
const orderDetailsComp = require("./orderDetails.js");
const recipeDetailsComp = require("./recipeDetails.js");
const transactionDetailsComp = require("./transactionDetails.js");
const ingredients = require("./ingredients.js");
const recipeBook = require("./recipeBook.js");
const orders = require("./orders.js");
const transactions = require("./transactions.js");

class Ingredient{
    constructor(id, name, category, unitType, unit, parent){
        this.id = id;
        this.name = name;
        this.category = category;
        this.unitType = unitType;
        this.unit = unit;
        this.parent = parent;
    }

    convert(quantity){
        if(this.unitType === "mass"){
            switch(this.unit){
                case "g": break;
                case "kg": quantity /= 1000; break;
                case "oz":  quantity /= 28.3495; break;
                case "lb":  quantity /= 453.5924; break;
            }
        }else if(this.unitType === "volume"){
            switch(this.unit){
                case "ml": quantity *= 1000; break;
                case "l": break;
                case "tsp": quantity *= 202.8842; break;
                case "tbsp": quantity *= 67.6278; break;
                case "ozfl": quantity *= 33.8141; break;
                case "cup": quantity *= 4.1667; break;
                case "pt": quantity *= 2.1134; break;
                case "qt": quantity *= 1.0567; break;
                case "gal": quantity /= 3.7854; break;
            }
        }else if(this.unitType === "length"){
            switch(this.unit){
                case "mm": quantity *= 1000; break;
                case "cm": quantity *= 100; break;
                case "m": break;
                case "in": quantity *= 39.3701; break;
                case "ft": quantity *= 3.2808; break;
            }
        }

        return quantity;
    }
}

class Recipe{
    constructor(id, name, price, ingredients, parent){
        this.id = id;
        this.name = name;
        this.price = price;
        this.parent = parent;
        this.ingredients = [];

        for(let i = 0; i < ingredients.length; i++){
            for(let j = 0; j < parent.ingredients.length; j++){
                if(ingredients[i].ingredient === parent.ingredients[j].ingredient.id){
                    this.ingredients.push({
                        ingredient: parent.ingredients[j].ingredient,
                        quantity: ingredients[i].quantity
                    });
                    break;
                }
            }
        }
    }
}

class Transaction{
    constructor(id, date, recipes, parent){
        this.id = id;
        this.parent = parent;
        this.date = new Date(date);
        this.recipes = [];

        for(let i = 0; i < recipes.length; i++){
            for(let j = 0; j < parent.recipes.length; j++){
                if(recipes[i].recipe === parent.recipes[j].id){
                    this.recipes.push({
                        recipe: parent.recipes[j],
                        quantity: recipes[i].quantity
                    });
                    break;
                }
            }
        }
    }
}

class Order{
    constructor(id, name, date, ingredients, parent){
        this.id = id;
        this.name = name;
        this.date = new Date(date);
        this.ingredients = [];
        this.parent = parent;

        for(let i = 0; i < ingredients.length; i++){
            for(let j = 0; j < parent.ingredients.length; j++){
                if(ingredients[i].ingredient === parent.ingredients[j].ingredient.id){
                    this.ingredients.push({
                        ingredient: parent.ingredients[j].ingredient,
                        quantity: ingredients[i].quantity,
                        price: ingredients[i].price
                    });
                }
            }
        }
    }

    convertPrice(unitType, unit, price){
        if(unitType === "mass"){
            switch(unit){
                case "g": break;
                case "kg": price *= 1000; break;
                case "oz":  price *= 28.3495; break;
                case "lb":  price *= 453.5924; break;
            }
        }else if(unitType === "volume"){
            switch(unit){
                case "ml": price /= 1000; break;
                case "l": break;
                case "tsp": price /= 202.8842; break;
                case "tbsp": price /= 67.6278; break;
                case "ozfl": price /= 33.8141; break;
                case "cup": price /= 4.1667; break;
                case "pt": price /= 2.1134; break;
                case "qt": price /= 1.0567; break;
                case "gal": price *= 3.7854; break;
            }
        }else if(unitType === "length"){
            switch(unit){
                case "mm": price /= 1000; break;
                case "cm": price /= 100; break;
                case "m": break;
                case "in": price /= 39.3701; break;
                case "ft": price /= 3.2808; break;
            }
        }

        return price;
    }
}

class Merchant{
    constructor(oldMerchant, transactions){
        this.name = oldMerchant.name;
        this.pos = oldMerchant.pos;
        this.ingredients = [];
        this.recipes = [];
        this.transactions = [];
        this.orders = [];
        this.units = {
            mass: ["g", "kg", "oz", "lb"],
            volume: ["ml", "l", "tsp", "tbsp", "ozfl", "cup", "pt", "qt", "gal"],
            length: ["mm", "cm", "m", "in", "foot"]
        }
        
        for(let i = 0; i < oldMerchant.inventory.length; i++){
            this.ingredients.push({
                ingredient: new Ingredient(
                    oldMerchant.inventory[i].ingredient._id,
                    oldMerchant.inventory[i].ingredient.name,
                    oldMerchant.inventory[i].ingredient.category,
                    oldMerchant.inventory[i].ingredient.unitType,
                    oldMerchant.inventory[i].defaultUnit,
                    this
                ),
                quantity: oldMerchant.inventory[i].quantity
            });
        }

        for(let i = 0; i < oldMerchant.recipes.length; i++){
            this.recipes.push(new Recipe(
                oldMerchant.recipes[i]._id,
                oldMerchant.recipes[i].name,
                oldMerchant.recipes[i].price,
                oldMerchant.recipes[i].ingredients,
                this
            ));
        }

        for(let i = 0; i < transactions.length; i++){
            this.transactions.push(new Transaction(
                transactions[i]._id,
                transactions[i].date,
                transactions[i].recipes,
                this
            ));
        }
    }

    /*
    Updates all specified item in the merchant's inventory and updates the page
    If ingredient doesn't exist, add it
    ingredients = {
        ingredient: Ingredient object,
        quantity: new quantity,
        defaultUnit: the default unit to be displayed
    }
    remove = set true if removing
    isOrder = set true if this is coming from an order
    */
    editIngredients(ingredients, remove = false, isOrder = false){
        for(let i = 0; i < ingredients.length; i++){
            let isNew = true;
            for(let j = 0; j < merchant.ingredients.length; j++){
                if(merchant.ingredients[j].ingredient === ingredients[i].ingredient){
                    if(remove){
                        merchant.ingredients.splice(j, 1);
                    }else if(!remove && isOrder){
                        merchant.ingredients[j].quantity += ingredients[i].quantity;
                    }else{
                        merchant.ingredients[j].quantity = ingredients[i].quantity;
                    }
    
                    isNew = false;
                    break;
                }
            }
    
            if(isNew){
                merchant.ingredients.push({
                    ingredient: ingredients[i].ingredient,
                    quantity: parseFloat(ingredients[i].quantity),
                    defaultUnit: ingredients[i].defaultUnit
                });
            }
        }
    
        homeStrandObj.drawInventoryCheckCard();
        ingredientsStrandObj.populateByProperty("category");
        addIngredientsComp.isPopulated = false;
        closeSidebar();
    }

    /*
    Updates a recipe in the merchants list of recipes
    Can create, edit or remove
    recipe = [Recipe object]
    remove = will remove recipe when true
    */
    editRecipes(recipes, remove = false){
        let isNew = true;

        for(let i = 0; i < recipes.length; i++){
            for(let j = 0; j < this.recipes.length; j++){
                if(recipes[i] === this.recipes[j]){
                    if(remove){
                        this.recipes.splice(j, 1);
                    }else{
                        this.recipes[j] = recipes[i];
                    }

                    isNew = false;
                    break;
                }
            }

            if(isNew){
                merchant.recipes.push(recipes[i]);
            }
        }

        transactionsStrandObj.isPopulated = false;
        recipeBookStrandObj.populateRecipes();
        closeSidebar();
    }

    /*
    Updates a list of orders in the merchants list of orders
    Create/edit/remove
    orders = [Order object]
    remove = will remove order when true
    */
    editOrders(orders, remove = false){
        for(let i = 0; i < orders.length; i++){
            let isNew = true;
            for(let j = 0; j < this.orders.length; j++){
                if(orders[i] === this.orders[j]){
                    if(remove){
                        this.orders.splice(j, 1);
                    }else{
                        this.orders[j] = orders[i];
                    }

                    isNew = false;
                    break;
                }
            }

            if(isNew){
                this.orders.push(orders[i]);
            }
        }

        ordersStrandObj.populate();
        closeSidebar();
    }

    editTransactions(transaction, remove = false){
        let isNew = true;
        for(let i = 0; i < this.transactions.length; i++){
            if(this.transactions[i] === transaction){
                if(remove){
                    this.transactions.splice(i, 1);
                }

                isNew = false;
                break;
            }
        }

        if(isNew){
            this.transactions.push(transaction);
            this.transactions.sort((a, b) => a.date > b.date ? 1 : -1);
        }

        transactionsStrandObj.isPopulated = false;
        transactionsStrandObj.display();
        closeSidebar();
    }

    /*
    Gets the indices of two dates from transactions
    Inputs
    from: starting date
    to: ending date (default to now)
    Output
    Array containing starting index and ending index
    Note: Will return false if it cannot find both necessary dates
    */
    transactionIndices(from, to = new Date()){
        let indices = [];

        for(let i = 0; i < this.transactions.length; i++){
            if(this.transactions[i].date > from){
                indices.push(i);
                break;
            }
        }

        for(let i = this.transactions.length - 1; i >=0; i--){
            if(this.transactions[i].date < to){
                indices.push(i);
                break;
            }
        }

        if(indices.length < 2){
            return false;
        }

        return indices;
    }

    revenue(indices){
        let total = 0;

        for(let i = indices[0]; i <= indices[1]; i++){
            for(let j = 0; j < this.transactions[i].recipes.length; j++){
                for(let k = 0; k < this.recipes.length; k++){
                    if(this.transactions[i].recipes[j].recipe === this.recipes[k]){
                        total += this.transactions[i].recipes[j].quantity * this.recipes[k].price;
                    }
                }
            }
        }

        return total / 100;
    }

    /*
    Gets the quantity of each ingredient sold between two dates (dateRange)
    Inputs
    dateRange: list containing a start date and an end date
    Return:
        [{
            ingredient: Ingredient object,
            quantity: quantity of ingredient sold
        }]
    */
    ingredientsSold(dateRange){
        if(!dateRange){
            return false;
        }
        
        let recipes = this.recipesSold(dateRange);
        let ingredientList = [];

        for(let i = 0; i < recipes.length; i++){
            for(let j = 0; j < recipes[i].recipe.ingredients.length; j++){
                let exists = false;

                for(let k = 0; k < ingredientList.length; k++){
                    if(ingredientList[k].ingredient === recipes[i].recipe.ingredients[j].ingredient){
                        exists = true;
                        ingredientList[k].quantity += recipes[i].quantity * recipes[i].recipe.ingredients[j].quantity;
                        break;
                    }
                }

                if(!exists){
                    ingredientList.push({
                        ingredient: recipes[i].recipe.ingredients[j].ingredient,
                        quantity: recipes[i].quantity * recipes[i].recipe.ingredients[j].quantity
                    });
                }
            }
        }
    
        return ingredientList;
    }

    singleIngredientSold(dateRange, ingredient){
        let total = 0;

        for(let i = dateRange[0]; i < dateRange[1]; i++){
            for(let j = 0; j < this.transactions[i].recipes.length; j++){
                for(let k = 0; k < this.transactions[i].recipes[j].recipe.ingredients.length; k++){
                    if(this.transactions[i].recipes[j].recipe.ingredients[k].ingredient === ingredient.ingredient){
                        total += this.transactions[i].recipes[j].recipe.ingredients[k].quantity;
                        break;
                    }
                }
            }
        }

        return total;
    }

    /*
    Gets the number of recipes sold between two dates (dateRange)
    Inputs:
        dateRange: array containing a start date and an end date
    Return:
        [{
            recipe: a recipe object
            quantity: quantity of the recipe sold
        }]
    */
    recipesSold(dateRange){
        let recipeList = [];

        for(let i = dateRange[0]; i <= dateRange[1]; i++){
            for(let j = 0; j < this.transactions[i].recipes.length; j++){
                let exists = false;
                for(let k = 0; k < recipeList.length; k++){
                    if(recipeList[k].recipe === this.transactions[i].recipes[j].recipe){
                        exists = true;
                        recipeList[k].quantity += this.transactions[i].recipes[j].quantity;
                        break;
                    }
                }

                if(!exists){
                    recipeList.push({
                        recipe: this.transactions[i].recipes[j].recipe,
                        quantity: this.transactions[i].recipes[j].quantity
                    });
                }
            }
        }

        return recipeList;
    }

    /*
    Create revenue data for graphing
    Input:
        dateRange: [start index, end index] (this.transactionIndices)
    Return:
        [total revenue for each day]
    */
    graphDailyRevenue(dateRange){
        if(!dateRange){
            return false;
        }

        let dataList = new Array(30).fill(0);
        let currentDate = this.transactions[dateRange[0]].date;
        let arrayIndex = 0;

        for(let i = dateRange[0]; i <= dateRange[1]; i++){
            if(this.transactions[i].date.getDate() !== currentDate.getDate()){
                currentDate = this.transactions[i].date;
                arrayIndex++;
            }

            for(let j = 0; j < this.transactions[i].recipes.length; j++){
                dataList[arrayIndex] += (this.transactions[i].recipes[j].recipe.price / 100) * this.transactions[i].recipes[j].quantity;
            }
        }

        return dataList;
    }
    
    /*
    Groups all of the merchant's ingredients by their category
    Return: [{
        name: category name,
        ingredients: [Ingredient Object]
    }]
    */
    categorizeIngredients(){
        let ingredientsByCategory = [];

        for(let i = 0; i < this.ingredients.length; i++){
            let categoryExists = false;
            for(let j = 0; j < ingredientsByCategory.length; j++){
                if(this.ingredients[i].ingredient.category === ingredientsByCategory[j].name){
                    ingredientsByCategory[j].ingredients.push(this.ingredients[i]);

                    categoryExists = true;
                    break;
                }
            }

            if(!categoryExists){
                ingredientsByCategory.push({
                    name: this.ingredients[i].ingredient.category,
                    ingredients: [this.ingredients[i]]
                });
            }
        }

        return ingredientsByCategory;
    }

    unitizeIngredients(){
        let ingredientsByUnit = [];

        for(let i = 0; i < this.ingredients.length; i++){
            let unitExists = false;
            for(let j = 0; j < ingredientsByUnit.length; j++){
                if(this.ingredients[i].ingredient.unit === ingredientsByUnit[j].name){
                    ingredientsByUnit[j].ingredients.push(this.ingredients[i]);

                    unitExists = true;
                    break;
                }
            }

            if(!unitExists){
                ingredientsByUnit.push({
                    name: this.ingredients[i].ingredient.unit,
                    ingredients: [this.ingredients[i]]
                });
            }
        }

        return ingredientsByUnit;
    }

    getRecipesForIngredient(ingredient){
        let recipes = [];

        for(let i = 0; i < this.recipes.length; i++){
            for(let j = 0; j < this.recipes[i].ingredients.length; j++){
                if(this.recipes[i].ingredients[j].ingredient === ingredient){
                    recipes.push(this.recipes[i]);
                }
            }
        }

        return recipes;
    }
}

let convertToMain = (unit, quantity)=>{
    let converted = 0;

    if(merchant.units.mass.includes(unit)){
        switch(unit){
            case "g": converted = quantity; break;
            case "kg": converted = quantity * 1000; break;
            case "oz": converted = quantity * 28.3495; break;
            case "lb": converted = quantity * 453.5924; break;
        }
    }else if(merchant.units.volume.includes(unit)){
        switch(unit){
            case "ml": converted = quantity / 1000; break;
            case "l": converted = quantity; break;
            case "tsp": converted = quantity / 202.8842; break;
            case "tbsp": converted = quantity / 67.6278; break;
            case "ozfl": converted = quantity / 33.8141; break;
            case "cup": converted = quantity / 4.1667; break;
            case "pt": converted = quantity / 2.1134; break;
            case "qt": converted = quantity / 1.0567; break;
            case "gal": converted = quantity * 3.7854; break;
        }
    }else if(merchant.units.length.includes(unit)){
        switch(unit){
            case "mm": converted = quantity / 1000; break;
            case "cm": converted = quantity / 100; break;
            case "m": converted = quantity; break;
            case "in": converted = quantity / 39.3701; break;
            case "ft": converted = quantity / 3.2808; break;
        }
    }else{
        converted = quantity;
    }

    return converted;
}

/* 
Switches to a different strand
Input:
 name: name of the strand.  Must end with "Strand"
*/
window.changeStrand = (name)=>{
    closeSidebar();

    for(let strand of document.querySelectorAll(".strand")){
        strand.style.display = "none";
    }

    let buttons = document.querySelectorAll(".menuButton");
    for(let i = 0; i < buttons.length - 1; i++){
        buttons[i].classList = "menuButton";
        buttons[i].disabled = false;
    }

    let activeButton = {};
    switch(name){
        case 1: 
            activeButton = document.getElementById("homeBtn");
            document.getElementById("homeStrand").style.display = "flex";
            homeStrand.display();
            break;
        case 2: 
            activeButton = document.getElementById("ingredientsBtn");
            document.getElementById("ingredientsStrand").style.display = "flex";
            ingredients.display();
            break;
        case 3:
            activeButton = document.getElementById("recipeBookBtn");
            document.getElementById("recipeBookStrand").style.display = "flex";
            recipeBook.display();
            break;
        case 4:
            activeButton = document.getElementById("ordersBtn");
            document.getElementById("ordersStrand").style.display = "flex";
            orders.display();
            break;
        case 5:
            activeButton = document.getElementById("transactionsBtn");
            document.getElementById("transactionsStrand").style.display = "flex";
            transactions.display();
            break;
    }

    activeButton.classList = "menuButton active";
    activeButton.disabled = true;

    if(window.screen.availWidth <= 1000){
        closeMenu();
    }
}

//Close any open sidebar
let closeSidebar = ()=>{
    let sidebar = document.querySelector("#sidebarDiv");
    for(let i = 0; i < sidebar.children.length; i++){
        sidebar.children[i].style.display = "none";
    }
    sidebar.classList = "sidebarHide";

    if(window.screen.availWidth <= 1000){
        document.querySelector(".contentBlock").style.display = "flex";
        document.getElementById("mobileMenuSelector").style.display = "block";
        document.getElementById("sidebarCloser").style.display = "none";
    }
    
}

/*
Open a specific sidebar
Input:
 sidebar: the outermost element of the sidebar (must contain class sidebar)
*/
let openSidebar = (sidebar)=>{
    document.querySelector("#sidebarDiv").classList = "sidebar";

    let sideBars = document.querySelector("#sidebarDiv").children;
    for(let i = 0; i < sideBars.length; i++){
        sideBars[i].style.display = "none";
    }

    sidebar.style.display = "flex";

    if(window.screen.availWidth <= 1000){
        document.querySelector(".contentBlock").style.display = "none";
        document.getElementById("mobileMenuSelector").style.display = "none";
        document.getElementById("sidebarCloser").style.display = "block";
    }
}

let changeMenu = ()=>{
    let menu = document.querySelector(".menu");
    let buttons = document.querySelectorAll(".menuButton");
    if(!menu.classList.contains("menuMinimized")){
        menu.classList = "menu menuMinimized";

        for(let button of buttons){
            button.children[1].style.display = "none";
        }

        document.querySelector("#max").style.display = "none";
        document.querySelector("#min").style.display = "flex";

        
    }else if(menu.classList.contains("menuMinimized")){
        menu.classList = "menu";

        for(let button of buttons){
            button.children[1].style.display = "block";
        }

        setTimeout(()=>{
            document.querySelector("#max").style.display = "flex";
            document.querySelector("#min").style.display = "none";
        }, 150);
    }
}

let openMenu = ()=>{
    document.getElementById("menu").style.display = "flex";
    document.querySelector(".contentBlock").style.display = "none";
    document.getElementById("mobileMenuSelector").onclick = ()=>{closeMenu()};
}

let closeMenu = ()=>{
    document.getElementById("menu").style.display = "none";
    document.querySelector(".contentBlock").style.display = "flex";
    document.getElementById("mobileMenuSelector").onclick = ()=>{openMenu()};
}

if(window.screen.availWidth > 1000 && window.screen.availWidth <= 1400){
    changeMenu();
    document.getElementById("menuShifter2").style.display = "none";
}

merchant = new Merchant(data.merchant, data.transactions);
homeStrand.display(merchant);